python 进程

实现多进程：

# -*- coding: utf-8 -*-

import multiprocessing
import time,os
'''

'''
def run(name):
    time.sleep(2)
    print('hello ',name)
if __name__ == '__main__':
    #获取父进程的id
    print("parent process id :",os.getppid())  
    #获取当前进程id
    print(" process id :",os.getpid())
    p = multiprocessing.Process(target =run ,args=('xiaoqiang',))
    p.start()
    p.join()